:root {
  color-scheme: dark;
  --bg: #0b0d12;
  --panel: #151822;
  --panel-2: #1c202c;
  --border: #262b3a;
  --text: #e6e8ef;
  --text-dim: #8b90a3;
  --accent: #7c5cff;
  --accent-2: #5b8cff;
  --good: #3ddc84;
  --bad: #ff5c6c;
  --warn: #ffb454;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
  font-size: 14px;
}

img { max-width: 100%; }
[hidden] { display: none !important; }

.screen { min-height: 100vh; }

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  text-align: center;
}

.login-card h1 {
  margin: 0 0 4px;
  font-size: 20px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  margin: 0 0 20px;
  color: var(--text-dim);
  font-size: 13px;
}

.login-card input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
  margin-bottom: 12px;
}

.login-card button {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

.login-card button:hover { background: var(--accent-2); }

.error { color: var(--bad); font-size: 13px; margin: 12px 0 0; }

header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

header h1 { font-size: 16px; margin: 0; white-space: nowrap; }

nav { display: flex; gap: 6px; flex-wrap: wrap; }

.tab-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 13px;
}

.tab-btn.active { background: var(--accent); border-color: var(--accent); color: white; }

.ghost-btn {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}

.ghost-btn:hover { border-color: var(--bad); color: var(--bad); }

main { padding: 20px; max-width: 1100px; margin: 0 auto; }

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.panel-head h2 { font-size: 15px; margin: 0; color: var(--text-dim); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }

.refresh-btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
}

.refresh-btn:hover { border-color: var(--accent); }

table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }

thead th {
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-dim);
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}

tbody td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }

.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; color: var(--text-dim); }

.hw-detail { font-size: 12px; color: var(--text-dim); }

.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; padding: 3px 9px; border-radius: 999px; }
.badge-online { background: rgba(61,220,132,.12); color: var(--good); }
.badge-offline { background: rgba(139,144,163,.12); color: var(--text-dim); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.btn { border: none; border-radius: 7px; padding: 6px 12px; font-size: 12px; cursor: pointer; font-weight: 600; }
.btn-approve { background: var(--good); color: #063; }
.btn-deny, .btn-blacklist { background: var(--bad); color: #400; }
.btn-revoke, .btn-unblacklist { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
.btn:hover { filter: brightness(1.1); }
.btn:disabled { opacity: .5; cursor: default; }

.username-input {
  width: 130px;
  padding: 6px 8px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 12px;
}

.empty-state { color: var(--text-dim); text-align: center; padding: 30px; font-size: 13px; }

.tool-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px; max-width: 420px; }
.tool-card h3 { margin: 0 0 6px; font-size: 14px; }
.tool-desc { color: var(--text-dim); font-size: 12px; margin: 0 0 12px; }
.tool-row { display: flex; gap: 8px; }
.tool-row input { flex: 1; padding: 8px 10px; border-radius: 7px; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); }
.tool-row button { border: none; border-radius: 7px; padding: 8px 14px; background: var(--accent); color: white; cursor: pointer; font-weight: 600; }
.tool-result { margin-top: 10px; font-size: 12px; color: var(--text-dim); min-height: 16px; }

.toast {
  position: fixed;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.toast.bad { border-color: var(--bad); color: var(--bad); }
.toast.good { border-color: var(--good); color: var(--good); }

@media (max-width: 700px) {
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  tbody tr { border-bottom: 1px solid var(--border); padding: 10px 0; }
  tbody td { border-bottom: none; padding: 4px 14px; }
  tbody td:empty { display: none; }
}